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162 lines
5.1 KiB
C
162 lines
5.1 KiB
C
/**HEADER********************************************************************
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*
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* Copyright (c) 2008 Freescale Semiconductor;
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* All Rights Reserved
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*
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* Copyright (c) 2004-2008 Embedded Access Inc.;
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* All Rights Reserved
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*
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* Copyright (c) 1989-2008 ARC International;
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* All Rights Reserved
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*
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***************************************************************************
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*
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* THIS SOFTWARE IS PROVIDED BY FREESCALE "AS IS" AND ANY EXPRESSED OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL FREESCALE OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************
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*
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* $FileName: ifdnat.c$
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* $Version : 3.8.5.0$
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* $Date : Jun-7-2012$
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*
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* Comments:
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*
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* This file contains the implementation of DNAT specific
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* user interface functions
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*
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*END************************************************************************/
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#include <rtcsrtos.h>
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#include <rtcs.h>
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#include <rtcs_prv.h>
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#include <stddef.h>
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#if RTCSCFG_ENABLE_NAT
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#include "nat.h"
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#include "nat_prv.h"
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : DNAT_add_rule
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* Returned Value : RTCS_OK or error code
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* Comments :
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* Adds a dnat rule to the dnat rule table. Rules in the dnat
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* rule are adminisratively ordered based on priority. The priority
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* must be unique.
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*
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*END*-----------------------------------------------------------------*/
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uint_32 DNAT_add_rule
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(
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uint_32 priority, /* [IN] */
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uint_16 protocol, /* [IN] */
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uint_16 start_port, /* [IN] */
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uint_16 end_port, /* [IN] */
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_ip_address private_ip, /* [IN] */
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uint_16 private_port
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)
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{ /* Body */
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DNAT_PARM dparms;
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if (priority == 0) {
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return RTCSERR_NAT_INVALID_RULE;
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}
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dparms.RULE.PRIORITY = priority;
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dparms.RULE.IP_PROTOCOL = protocol;
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dparms.RULE.PUBLIC_START_PORT = start_port;
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dparms.RULE.PUBLIC_END_PORT = end_port;
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dparms.RULE.PRIVATE_START_PORT = private_port;
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dparms.RULE.PRIVATE_END_PORT = (uint_16) ((uint_32)private_port+end_port-start_port);
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dparms.RULE.PRIVATE_IP = private_ip;
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// NAT event add needs to sort timeouts before a non-default (non-zero) timeout will work
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dparms.RULE.TIMEOUT = 0;
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return RTCSCMD_issue(dparms, DNAT_add_rule_internal);
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}/* Endbody */
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : DNAT_delete_rule
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* Returned Value : RTCS_OK or error code
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* Comments :
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* Removes a dnat rule from the dnat rule table.
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*
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*END*-----------------------------------------------------------------*/
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uint_32 DNAT_delete_rule
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(
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uint_32 priority
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)
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{ /* Body */
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DNAT_PARM dparms;
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if (priority == 0) {
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return RTCSERR_NAT_INVALID_RULE;
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}
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dparms.RULE.PRIORITY = priority;
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return RTCSCMD_issue(dparms, DNAT_delete_rule_internal);
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} /* Endbody */
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : DNAT_get_next_rule
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* Returned Value : RTCS_OK or error code
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* Comments :
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* Returns a dnat rul from the rule table.
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*
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*END*-----------------------------------------------------------------*/
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uint_32 DNAT_get_next_rule
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(
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uint_32_ptr priority_ptr, /* [IN/OUT] */
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uint_16_ptr protocol_ptr, /* [OUT] */
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uint_16_ptr start_port_ptr, /* [OUT] */
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uint_16_ptr end_port_ptr, /* [OUT] */
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_ip_address _PTR_ private_ip_ptr, /* [OUT] */
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uint_16_ptr private_port_ptr /* [OUT] */
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)
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{ /* Body */
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DNAT_PARM dparms;
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uint_32 result;
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dparms.RULE.PRIORITY = MAX_UINT_32;
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if (priority_ptr != NULL)
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{
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dparms.RULE.PRIORITY = (*priority_ptr) ? (*priority_ptr) : (MAX_UINT_32);
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}
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result = RTCSCMD_issue(dparms, DNAT_get_next_rule_internal);
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if (result == RTCS_OK) {
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if (priority_ptr != NULL) *priority_ptr = dparms.RULE.PRIORITY;
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if (protocol_ptr != NULL) *protocol_ptr = dparms.RULE.IP_PROTOCOL;
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if (start_port_ptr != NULL) *start_port_ptr = dparms.RULE.PUBLIC_START_PORT;
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if (end_port_ptr != NULL) *end_port_ptr = dparms.RULE.PUBLIC_END_PORT;
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if (private_port_ptr != NULL) *private_port_ptr = dparms.RULE.PRIVATE_START_PORT;
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if (private_ip_ptr != NULL) *private_ip_ptr = dparms.RULE.PRIVATE_IP;
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}
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return result;
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} /* Endbody */
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#endif
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/* EOF */
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